class ObjectTable::View
Constants
- Util
Public Class Methods
new(parent, &block)
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Calls superclass method
# File lib/object_table/view.rb, line 13 def initialize(parent, &block) super() @parent = parent @filter = block end
Public Instance Methods
cache_columns() { || ... }
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# File lib/object_table/view.rb, line 53 def cache_columns @columns = columns value = yield @columns = nil value end
cache_indices() { || ... }
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# File lib/object_table/view.rb, line 42 def cache_indices @indices = indices value = yield @indices = nil value end
clone()
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# File lib/object_table/view.rb, line 23 def clone if nrows == 0 cols = @parent.columns.map{|k, v| [k, NArray.new(v.typecode, 0)]} else cols = @parent.columns.map{|k, v| [k, v[false, indices]]} end __table_cls__.new(cols) end
columns()
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Calls superclass method
ObjectTable::ViewMethods#columns
# File lib/object_table/view.rb, line 49 def columns @columns or super end
indices()
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# File lib/object_table/view.rb, line 38 def indices @indices or NArray.int(@parent.nrows).indgen![Util.apply_block(@parent, @filter)] end
inspect(*args)
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Calls superclass method
# File lib/object_table/view.rb, line 32 def inspect(*args) cache_columns{ super } rescue NoMethodError => e raise Exception.new(e) end
make_view()
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# File lib/object_table/view.rb, line 19 def make_view __static_view_cls__.new @parent, indices end